In my opinion, they are not worth 900. Ramjets and snipers simply do far too much damage to them. 1 Ramjet clip does 200 damage, and 1 Sniper rifle clip does about 120. I don't bother wasting my money on them...now if they had 200health/armor like they do in the Single PLayer Mod, then they would be worth 900. But an Orca can't survive more than 1 shot from the obelisk...and it should be this way, because in Tiberian Dawn/Sun, the Orca could take barely 2 shots from an obelisk.

Anyone else think they need to be improved or cost lowered?